18/09/2024 – Helms Arboretum revisited

Esperance, Helms Arboretum, List of Orchids Found, Western Australian Orchids

After what seems like forever, we finally get back to check out Helms Arboretum to see what is flowering in mid-September.

As expected, we are not disappointed with many different species found.

Listed in no particular order are the orchids found grouped together for recording purposes.

Purple enamel orchid

Elythranthera brunonis

Flower: Aug to early Nov


Cowslip orchid

Caladenia flava subsp. flava

Flower: Jul to early Dec


Little pink fairy

Caladenia reptans subsp. reptans

Flower: Jul to early Oct


Un-named hybrid orchid

Caladenia flava x C. reptans

Parents flower: July to early Oct / Dec


Lemon-scented sun orchid

Thelymitra antennifera

Flower: Jul to Oct


?? snail orchid

Pterostlyis sp.

Unsure of ID.. Possibly the un-named species assigned to Helms Arboretum


Bee orchid

Diuris laxiflora

Flower: Sept to early Nov


Common bee orchid

Diuris decrementa

Flower: Late Aug to early Nov


Red beaks

Pyrorchis nigricans

Flower: Aug to Oct


Un-named hybrid orchid

Thelymitra antennifera x T.graminea

T. antennifera flowers: Jul to Oct


Shy sun orchid

Thelymitra graminea

Flower: Sept to mid-Nov


Esperance king spider orchid

Caladenia decora

Flower: Mid-Aug to Oct


Heberle’s spider orchid

Caladenia heberleana

Flower: Sept to Oct


Un-named hybrid spider orchid

Caladenia decora x C. longicauda

I have decided name this hybrid the Esperance spider orchid due to both parents being names Esperance King and Esperance White respectively.

Flower: Aug to Oct


Rattle Beaks

Lyperanthus serratus

Flower: Sept to Nov


Zebra orchid

Caladenia cairnsiana

Flower: Aug to early-Nov


Esperance white spider orchid

Caladenia longicauda subsp. crassa

Flower: Aug to early-Oct


?? spider orchid

Caladenia sp.

Appears to be further Caladenia longicauda. However, they do not have the usual white colouring or the red labellum of a C.decora hybrid.


Esperance white spider orchid

Caladenia longicauda subsp. crassa

Hypochromic variant


Common mignonette orchid

Microtis media subsp. media

Flower: Sept to Jan


Well, it was an amazing day out in the Arboretum, with the finds including 3 different hybrids and a hypochromic variant.
Species from 8 different genera were located which confirms this location to be one of the premier spots in the SE Coastal area of WA.

Unfortunately, in the summer of 2024/25 an uncontrolled bush fire destroyed large areas of the arboretum and to this day (12/06/2026 it is closed to the public.

Fingers crossed it will be open before the 2026 season is finished.

Discovering Unique Orchids in Goldfields Region – Final day of our Pub Crawl trip

List of Orchids Found, Nature Reserves, Numerous days, Road Trip, Victoria Rock NR, Western Australian Orchids

15/09/2024

We check out of the York Hotel in Kalgoorlie, then say our goodbyes to Bob n Jan who are heading straight home to Esperance.
Deb and I on the other hand have more orchid hunting to achieve on our return home.

First point of call is Victoria Rock Nature Reserve at 10am on this beautiful Sunday morning. For the next 2hrs or so we wander around the rock and surrounding woodland. The flies are terrible, so we actually wear our head nets on this exploration. We are rewarded for our perseverance with some good orchids found.

In no particular order the following orchids were located and photographed:

Little laughing leek orchid (Prasophyllum gracile),
Dainty brown rufous greenhood (Pterostylis tryphera),
Desert mignonette orchid (Microtis eremicola),
Ant / Clown orchid (Caladenia roei),
Yellow granite donkey orchid (Diuris hazeliae),
Lemon-scented sun orchid (Thelymitra antennifera) and
Granite sun orchid (Thelymitra petrophila).


Numerous hybrid orchids were an exciting find.
Parents are the Lemon-scented sun orchid and the Granite sun orchid, both of which have been found at this location.


Onwards to our next location, we head south down Victoria Rock Road and turn left onto the Hyden-Norseman Road.
Upon reaching the Coolgardie-Esperance we make a right turn, then pass through Norseman.
Our next location, Bromus Dam is to the right of the highway some 30kms south of Norseman.
We head straight for the McPherson’s Rocks granite outcrop and start our exploration.

We are fortunate to find the following orchids in flower:

Cream spider orchid (Caladenia horistes),
Little laughing leek orchid (Prasophyllum gracile),
Cowslip orchid (Caladenia flava subsp. flava) and
Yellow granite donkey orchid (Diuris hazeliae).


We need to keep on moving closer to home, so we make tracks south along the highway as far as Circle Valley to check out the woodlands surrounding the salt lakes.
Here we find the Short-sepaled spider orchid (Caladenia brevisura) in good numbers with one lonely Midget greenhood (Pterostylis mutica) and a all but spent spider orchid (ID unknown).


Well, that is our final stop on the Pub Crawl road trip done and dusted.

Our trip with Bob n Jan started back on the 7th of September.
We stayed overnight in some interesting pubs:
Newdegate Hotel
Kukerin Community Hub
Cuballing Tavern
Hotel Beverley
Greenhills Inn
Koorda Hotel
Palace Hotel – Southern Cross
York Hotel – Kalgoorlie

A wonderful road trip enjoyed with good friends.

New Orchid Discovery at Helms Arboretum – 2023 Season Finale Highlights

Esperance, Helms Arboretum, List of Orchids Found, Western Australian Orchids










15/09/2023 ….. Final day of 2023 Road Trip :(

Beaumont NR, Clyde Hill NR, Condingup Water Reserve, Nature Reserves, Numerous days, Other Reserves, Road Trip
































23/10/2022 ….. Ride out to Ridley (Mount)

Sunday Drive, Western Australian Orchids

Today is a much sunnier day than yesterday, so our drive north will be nice and warm. After around 1 hr in the Triton we arrive at Mount Ridley where we first venture up to the Rock Art. Here we show Lorraine, my sister and brother-in-law Ken the art hidden on the underside of the hollowed-out boulder. It is quite amazing.


We then go exploring the nearby boulders and other interesting rocky features. It is during this walk around that amazingly, we find an orchid growing in the very hot, dry foliage, in a shallow soil pocket on the granite. The orchid is from the Rufous complex of the Pterostylis genus. The rosette is completely dried as are three of the five flowers. Another similar specimen is found further along which also has a dried rosette and four of the seven flowers are finished. The 2nd specimen appears to match the description for the Striped rufous greenhood (Pterostylis zebrina) which is recorded as flowering in September and October over a range between Karlgarin and Mt Ridley, the latter being our current location.


We explored a bit more, enjoying the unique rock formations of the area and unexpectedly we came across some other orchids. Orchids from the Microtis genus were found growing with the “Borya” in shallow soil on the granite, with taller ones found growing in the scrub at the base of the rocks. As they had finished flowering it is not possible to positively identify them so will just leave them assigned to their genus.


Moving back to the carpark at the base of the rock, we enjoy a bite to eat for lunch at the old well site. Back on foot we walk around to the rock wave, for some quiet contemplation, before heading home for a coldie.

08/10/2022 & 09/10/2022 ….. Jacup Jewels

Numerous days, Road Trip, Western Australian Orchids

Upon leaving the Jerramungup burnt are we head east looking for somewhere to park up for the night. We make it about 35kms when we pull into the Jacup Highway Park at the Fitzgerald River crossing. This will do, so we set up the camper and I do my best to drive over a log in my Ford Falcon, not the greatest idea ๐Ÿ™‚ I’ve had.

Now we still have the late afternoon to go orchid hunting. As per our previous visit to this location, we are not disappointed. First, we find the Green spider/Fringed mantis orchid (Caladenia falcata) flowering in isolation and in small groups over the entire area we checked out.

As can be seen in the picture above the hybrid, Wheatbelt spider orchid (Caladenia x cala) was also found. It was amazing how many were actually found, as we usually find one or two only in each location.

And of course, we also found the other parent for the hybrid. The Stark white spider orchid (Caladenia longicauda subsp. eminens) occurs as far east as Ravensthorpe and grows in open woodlands so seems to fit the bill.

Next, we find the very special Lazy spider orchid (Caladenia multiclavia) which is recorded as occurring between Wongan Hills, Borden and Ravensthorpe. This unusual looking orchid is known for its upright petals and sepals plus the smooth striped labellum with a dense band of bristly headed calli.

We also come across a mixture of other orchids but not in great numbers, so I will record then with only 1 pic each. Firstly, there is the ever-reliable Cowslip orchid (Caladenia flava subsp. flava) and Common mignonette orchid (Microtis media subsp. media). Both are common, widespread orchids. Then the more rarely found, without a recent summer fire, Red Beaks (Pyrorchis nigricans) is discovered with a nine-flower inflorescence. Finally, a pale coloured Pink candy orchid (Caladenia hirta subsp. rosea) and possibly a Ravensthorpe rufous greenhood (Pterostylis leptochila) yet to fully flower are found.

One orchid not expected was the Common dragon orchid (Caladenia barbarossa) which is found flowering between Bindoon and Munglinup. There are only 4 species of dragon orchids, and all are endemic to WA. Only 2 specimens found but still very happy.

However, one final orchid is found in decent numbers. The Drooping spider orchid (Caladenia radialis), is found flowering between Northampton and Ravensthorpe from August to October. The labellum can have smooth margins or tiny marginal teeth.

Back to camp due to the fading light.

Small campfire lit

We awake to a beautiful sunny morning, have breakfast then decide we will take some time this morning to complete a search down to the river. Fingers crossed for something new.

First up though I will post pictures of those orchids we come across that we also found in our afternoon search yesterday.

Now for the new findings of the location. The Short-sepaled spider orchid (Caladenia brevisura) is found between Jerramungup and Israelite Bay from August to October. Only one specimen found, and not the best picture, but a record non the less. Another sole specimen found was that of the Bee orchid (Diuris laxiflora) which flowers September to early November between Gingin and Esperance.

Blue sun orchids are found in good numbers closer to the river. Now identifying them is needed. As I am writing this account over 12mth later I am identifying them from pictures taken. Based on these I feel some to be Scented sun orchid (Thelymitra macrophylla) due to the broad leaf and large numerous flowers. Others though have thin leaves with fewer flowers, so are most likely the Shy sun orchid (Thelymitra graminea). Both are recorded as flowering in the Shires of Ravensthorpe and Jerramungup during the month of October.

It is 11am so we had better push on as we need to arrive home in Esperance today. One last stop is made at Kukenarup Memorial, where we enjoy a spot of lunch before one last exploration for orchids.

07/10/2022 ….. Lake Toolbrunup & Kebaringup

Anderson Lake NR, Nature Reserves, Numerous days, Road Trip, Western Australian Orchids

Next stop on our winding drive back to Esperance is another new location. Anderson Lake Nature Reserve which is 30kms east as the crow flies from Pootenup Nature Reserve, will hopefully produce some different orchids. As we get close to the location it is apparent that it is much drier so let’s see if we actually find anything at all.

As anticipated, we struggled to find any orchids, however the ones found were indeed different. Very close to where we park, we find our first orchid. The Purple veined spider orchid (Caladenia doutchiae) flowers August through October, between Mullewa and Ravensthorpe. References checked indicate it is found growing on rises around salt lakes, which is exactly the habitat we are currently searching. Four sperate flowers were located, which portray the variable colouring to this species.


It was another 15mins or so before we stumbled across another orchid. This time it was the Midget greenhood (Pterostylis mutica) that caught Debs eye. The lime green colouring stands out against the otherwise brown foliage. These small orchids flower July through October, between Wongan Hills and the SA border. They are also found in QLD, NSW, Vic, Tas and SA. Florabase mentions they are known to grow around saline lakes, again confirming we are in suitable habitat.


The next orchid found was a pleasant surprise. First up we thought it was a frog greenhood, but as we settled in to take some photos it became apparent that it was another species. After getting back into the Triton we are excited to note that this is a new species for us. The Ruddy hood (Pterostylis perculta) flowers from late September to early November between Kojonup and Cape Arid National Park. It was only formally named in 2015, previously called sp. “Ongerup’ which alludes to its location. It is a small orchid growing to 150mm in height, may have up to 5 flowers per orchid and is found growing in sandy-clay and clay soils.


As alluded to earlier we had returned to the Triton as this location did not prove overly productive, however finding a new species is always amazing. We head north up to Gnowangerup, then west stopping along the roadside in Kebaringup. I believe this is only our 2nd time visiting this location so we will see what turns up this time.

Straight up the large white spider orchids catch our eye. The Stark white spider orchid (Caladenia longicauda subsp. eminens) is probably the species found, based solely on location. They flower August to early October between Moora and Esperance and can grow to 600mm in height.


Further orchids are found, though not in great numbers. The Little laughing leek orchid (Prasophyllum gracile) the Cowslip orchid (Caladenia flava subsp. flava) and the Green spider orchid (Caladenia falcata) are all represented by sole specimens.


More Purple veined spider orchids are found in better numbers. Then another single specimen on anorchid is found. The Common mignonette orchid (Microtis media subsp. media) is a widespread orchid being found flowering between Shark Bay and Eyre during the months of September through January. The final orchid found for the day was a good bunch of Jospeh’s spider orchid (Caladenia polychroma), which are found between Boyup Brook and the Fitzgerald River National Park during the months of September and October.


We decide to move on and look for somewhere to stay the night. As we have 2 vehicles and a camper trailer, we make the decision to check into the Ongerup Gardens Caravan Park for the night. It was a choose you own site sort of place, so we parked up close to the ablutions. This was a great day orchid hunting in our wonderful Western Australian outdoors.

25/09/2022 ….. Gibbo re-visited.

List of Orchids Found, Sunday Drive, Western Australian Orchids

Earlier this season (June) we checked out the burnt area north of Gibson and found greenhoods but nothing else. Now that we are at the other end of the season, we pop out there again to record what is now flowering. After nearly 3hrs searching the area, we were pleased to find so many orchids flowering. I hope you enjoy the photos below, that record what species we found.


Common mignonette orchid (Microtis media subsp. media)

Season: Sept to Jan

Distribution: Shark Bay to Eyre

Habitat: Sandy, sandy-clay and lateritic soils in forests, woodlands and shrublands.

Common mignonette orchid (Microtis media subsp. media)


Red beaks (Pyrorchis nigricans)

Red beaks (Pyrorchis nigricans)

Season: Aug to Oct

Distribution: Shark Bay to Israelite Bay

Habitat: Sandy, sandy-clay and lateritic soils in forests, woodlands and shrublands. Usually only flower the season following a summer fire.


Purple enamel orchid (Elythranthera brunonis)

Purple enamel orchid (Elythranthera brunonis)

Season: Aug to early Nov

Distribution: Kalbarri to Israelite Bay

Habitat: Sandy, sandy-clay and lateritic soils in forests, woodlands and shrublands.


Zebra orchid (Caladenia cairnsiana)

Zebra orchid (Caladenia cairnsiana)

Season: Aug to early Nov

Distribution: Lancelin to Esperance

Habitat: Sandy and sandy-clay soils in forests, woodlands and shrublands.


Little pink fairy (Caladenia reptans subsp. reptans)

Little pink fairy (Caladenia reptans subsp. reptans)

Season: July to early Oct

Distribution: Northampton to Esperance

Habitat: Sandy, sandy-clay and lateritic soils in forests, woodlands and shrublands.


Cowslip orchid (Caladenia flava subsp. flava)

Cowslip orchid (Caladenia flava subsp. flava)

Season: July to early Dec

Distribution: Northampton to Israelite Bay

Habitat: Sandy, sandy-clay, lateritic and granitic soils in forests, woodlands and shrublands.


Little pink fan orchid (Caladenia nana subsp. nana)

Little pink fan orchid (Caladenia nana subsp. nana)

Season: Late Sept to Oct

Distribution: Perth to Bremer Bay. ( 250kms to the West )

Habitat: Sandy-clay and lateritic soils in forests and woodlands. Best in the season following a summer fire.


White fairy orchid (Caladenia marginata)

White fairy orchid (Caladenia marginata)

Season: Late Sept to Nov

Distribution: Jurien Bay to Israelite Bay

Habitat: Sandy and sandy-clay soils in seasonally wet flats and runoff areas on granite outcrops. Flowers best in season following a summer fire.


Blue china orchid (Cyanicula gemmata)

Blue china orchid (Cyanicula gemmata)

Season: Aug to early Nov

Distribution: Kalbarri to Israelite Bay

Habitat: Sandy, sandy-clay, lateritic and granitic soils in forests, woodlands and shrublands.


Granite china orchid (Cyanicula nikulinskyae)

Granite china orchid (Cyanicula nikulinskyae)

Season: Sept to early Nov

Distribution: Fitzgerald River National Park and Israelite Bay

Habitat: Shallow soil pockets on granite outcrops. The recently integrated Condingup china orchid (C. sp ‘Esperance”) was listed as growing in shrublands and woodlands.


Heberle’s spider orchid (Caladenia heberleana)

Heberle’s spider orchid (Caladenia heberleana)

Season: Sept to Oct

Distribution: Augusta to Cape Arid

Habitat: Sandy and sandy-clay soils in forests, woodlands and shrublands.


Esperance king spider orchid (Caladenia decora)

Esperance king spider orchid (Caladenia decora)

Season: Mid Aug to Oct

Distribution: Bremer Bay to Cape Arid

Habitat: Sandy-clay and clay soils in woodlands and shrublands.


Small mantis orchid (Caladenia attingens subsp. gracillima)

Small mantis orchid (Caladenia attingens subsp. gracillima)

Season: Aug to early Oct

Distribution: Jerramungup to Israelite Bay

Habitat: Sandy and sandy-clay soils in woodlands and shrublands.


Dancing spider orchid (Caladenia discoidea)

Season: Aug to early Oct

Distribution: Kalbarri to Israelite Bay

Habitat: Sandy soils in woodlands and shrublands.

Dancing spider orchid (Caladenia discoidea)

White mignonette orchid (Microtis alba)

White mignonette orchid (Microtis alba)

Season: Oct to Jan

Distribution: Dongara to Esperance

Habitat: Sandy, sandy-clay and lateritic soils in forests, woodlands and seasonally wet flats. Most common in the season following a summer fire.


Bee orchid (Diuris laxiflora)

Bee orchid (Diuris laxiflora)

Season: Sept to early Nov

Distribution: Gingin to Esperance

Habitat: Sandy-clay and clay soils in seasonally wet areas.


Twisted sun orchid (Thelymitra flexuosa)

Twisted sun orchid (Thelymitra flexuosa)

Season: Sept to Oct

Distribution: Kalbarri and Israelite Bay

Habitat: Seasonally-wet flats and shallow soil pockets on granite outcrops.


Swamp mignonette orchid (Microtis atrata)

Swamp mignonette orchid (Microtis atrata)

Season: Sept – Nov

Distribution: Jurien Bay to Israelite Bay. Also found in SA, Vic and Tas.

Habitat: Sandy-clay and clay soils in seasonally-wet flats.


Hybrid orchid (Caladenia x sp.)

Hybrid orchid (Caladenia flava x reptans)

Season: July to early Dec

Distribution: Northampton to Esperance

Habitat: Sandy, sandy-clay, lateritic and granitic soils in forests, woodlands and shrublands.


18 species and 1 hybrid found in just over 2 and a half hours of searching in the 1 location. A SUPER SUNDAY!!!!!

04/09/2022 ….. Father’s Day Findings Pt. II

Sunday Drive, Western Australian Orchids

Saying goodbye to the kids, grandkids and Deb C, we head north for our next location. Here we check out the burnt patch north of Gibson.
















So many orchids, but as it is after 1.30pm we head off to grab a late lunch at the Esperance Bird & Animal Park .. Hamburgers n chips enjoyed ..I had a GOAT beer to celebrate a wonderful Father’s Day .